16. What is the solubility of Ca(OH)2 in 0.0860 M Ba(OH)2? The Ksp for Ca(OH)2 is known to be 4.68 x 106.

Chemistry for Engineering Students
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Chapter12: Chemical Equilibrium
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Problem 12.97PAE
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16. What is the solubility of Ca(OH)2 in 0.0860 M Ba(OH)2?
The Ksp for Ca(OH)2 is known to be 4.68 x 10-6.
17. A buffer solution was made by dissolving 10.0 grams of
sodium acetate in 200.0 mL of 1.00 M acetic
acid. Assuming the change in volume when the sodium
acetate is not significant, estimate the pH of the acetic
acid/sodium acetate buffer solution. The Ka for acetic acid
is 1.7 x 10-5.
18. Determine the oxidation number of each element in
the following compounds:
(a) BaO2 (b) (NH4)2M0O4 (C)Na3Co(NO2)6 (d) CS2
19. Identify the species being oxidized and reduced in
each of the following reactions: (
a. Cr* + Sn4+ Cr3+ + Sn2+
b. 3 Hg2+ + 2 Fe (s) 3 Hg2 + 2 Fe3+
Transcribed Image Text:16. What is the solubility of Ca(OH)2 in 0.0860 M Ba(OH)2? The Ksp for Ca(OH)2 is known to be 4.68 x 10-6. 17. A buffer solution was made by dissolving 10.0 grams of sodium acetate in 200.0 mL of 1.00 M acetic acid. Assuming the change in volume when the sodium acetate is not significant, estimate the pH of the acetic acid/sodium acetate buffer solution. The Ka for acetic acid is 1.7 x 10-5. 18. Determine the oxidation number of each element in the following compounds: (a) BaO2 (b) (NH4)2M0O4 (C)Na3Co(NO2)6 (d) CS2 19. Identify the species being oxidized and reduced in each of the following reactions: ( a. Cr* + Sn4+ Cr3+ + Sn2+ b. 3 Hg2+ + 2 Fe (s) 3 Hg2 + 2 Fe3+
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